You Are Designing a Schema for a Table That Will

question 75

Multiple Choice

You are designing a schema for a table that will be moved from MySQL to Cloud Bigtable. The MySQL table is as follows: How should you design a row key for Cloud Bigtable for this table?

• A) Set Account_id as a key. Set Account_id as a key.
• B) Set Account_id_Event_timestamp as a key. Account_id_Event_timestamp
• C) Set Event_timestamp_Account_id as a key. Event_timestamp_Account_id
• D) Set Event_timestamp as a key. Event_timestamp

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Definitions:

Carbocation Intermediate

A positively charged carbon ion, often found as a reactive intermediate in organic reactions, characterized by a carbon atom having only six electrons in its valence shell.

Resonance Contributors

Describes the various Lewis structures that represent a molecule's bonding and electron arrangement, highlighting how electrons can delocalize across the molecule.

Carbocation Intermediate

A positively charged ion (cation) characterized by the presence of a carbon atom having only six electrons in its valence shell, often occurring in organic reactions.

Resonance Contributors

Structures that depict the delocalization of electrons within a molecule, showing different possible configurations without changing the placement of atoms.